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    "# WebSocketManager 中间层设计分析\n",
    "1. 连接管理与抽象： \n",
    "   -管理多个 WebSocket 连接，集中处理连接的建立、维护和关闭\n",
    "   - 抽象出消息队列和发送任务，实现消息的缓冲和有序发送\n",
    "   - 隐藏底层 WebSocket 通信细节，提供更高级的接口\n",
    "\n",
    "\n",
    "假设没有 WebSocketManager 中间层：\n",
    "\n",
    "```python\n",
    "# 没有中间层的情况下，可能看起来像这样\n",
    "@app.websocket(\"/ws\")\n",
    "async def websocket_endpoint(websocket: WebSocket):\n",
    "    await websocket.accept()\n",
    "    try:\n",
    "        while True:\n",
    "            data = await websocket.receive_text()\n",
    "            if data.startswith(\"start\"):\n",
    "                # 直接调用研究任务，混合了通信和业务逻辑\n",
    "                parts = data.split()\n",
    "                task, report_type = parts[1], parts[2]\n",
    "                # 直接在这里处理研究任务，导致代码混乱\n",
    "                report = await run_agent(task, report_type, ..., websocket)\n",
    "                # 需要在这里处理聊天代理初始化等\n",
    "            # 其他消息处理...\n",
    "    except WebSocketDisconnect:\n",
    "        # 清理资源\n",
    "```\n",
    "\n",
    "使用 WebSocketManager 后：\n",
    "\n",
    "```python\n",
    "@app.websocket(\"/ws\")\n",
    "async def websocket_endpoint(websocket: WebSocket):\n",
    "    await manager.connect(websocket)  # 连接管理被抽象\n",
    "    try:\n",
    "        await handle_websocket_communication(websocket, manager)  # 通信逻辑被抽象\n",
    "    except WebSocketDisconnect:\n",
    "        await manager.disconnect(websocket)  # 断开连接被抽象\n",
    "```\n",
    "\n",
    "**总结**：WebSocketManager 作为中间层，实现了关注点分离、组件解耦和通信抽象，使得系统更加模块化、健壮和可维护。这是符合软件工程良好实践的设计决策。🙂\n"
   ]
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